IWC Schaffhausen Portugieser Chronograph

The IWC Schaffhausen Portugieser Chronograph IW371626 is a chronograph with a white gold case measuring 41 mm across. The case stands 13 mm thick and carries a rating of 3 bar, equivalent to 30 metres. Inside is an IWC-manufactured self-winding movement, calibre 69355, with a 46-hour power reserve. A sapphire crystal, convex and treated with antireflective coating on both sides, sits over the horizon blue dial. The chronograph function is paired with a small seconds display. A sapphire display back at the rear reveals the movement. IWC fits the watch on a light blue calfskin strap.